53454491 has 2 divisors, whose sum is σ = 53454492. Its totient is φ = 53454490.

The previous prime is 53454449. The next prime is 53454517. The reversal of 53454491 is 19445435.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53454491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53454421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26727245 + 26727246.

It is an arithmetic number, because the mean of its divisors is an integer number (26727246).

Almost surely, 2^53454491 is an apocalyptic number.

53454491 is a deficient number, since it is larger than the sum of its proper divisors (1).

53454491 is an equidigital number, since it uses as much as digits as its factorization.

53454491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 35.

The square root of 53454491 is about 7311.2578261199. The cubic root of 53454491 is about 376.6992303101.

The spelling of 53454491 in words is "fifty-three million, four hundred fifty-four thousand, four hundred ninety-one".